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MathNet 2026 — Part 02 Question 102

Math Olympiad Vault · MathNet 2026 — Part 02

Question 102

In the figure below, the segments $AB$ and $CD$ are parallel. If $\angle CIJ = 10\beta$, $\angle AGJ = 10\alpha$, $\angle CEJ = 6\alpha$ and $\angle JFG = 6\beta$, determine the angle value $\angle IJK$. Question illustration